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feat(forms): add support for checkbox

This commit is contained in:
vsavkin 2015-02-07 14:14:07 -08:00
parent 74f92c6a79
commit 4b24734855
2 changed files with 169 additions and 57 deletions
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122
modules/angular2/src/forms/directives.js vendored
View File

@ -1,7 +1,7 @@
import {TemplateConfig, Component, Decorator, NgElement, Ancestor} from 'angular2/core';
import {TemplateConfig, Component, Decorator, NgElement, Ancestor, onChange} from 'angular2/core';
import {DOM} from 'angular2/src/facade/dom';
import {isBlank, isPresent} from 'angular2/src/facade/lang';
import {ListWrapper} from 'angular2/src/facade/collection';
import {isBlank, isPresent, CONST} from 'angular2/src/facade/lang';
import {StringMapWrapper, ListWrapper} from 'angular2/src/facade/collection';
import {ControlGroup, Control} from './model';
class ControlGroupDirectiveBase {
@ -9,73 +9,126 @@ class ControlGroupDirectiveBase {
findControl(name:string):Control { return null; }
}
@CONST()
export class ControlValueAccessor {
readValue(el){}
writeValue(el, value):void {}
}
@CONST()
class DefaultControlValueAccessor extends ControlValueAccessor {
constructor() {
super();
}
readValue(el) {
return el.value;
}
writeValue(el, value):void {
el.value = value;
}
}
@CONST()
class CheckboxControlValueAccessor extends ControlValueAccessor {
constructor() {
super();
}
readValue(el):boolean {
return el.checked;
}
writeValue(el, value:boolean):void {
el.checked = value;
}
}
var controlValueAccessors = {
"checkbox" : new CheckboxControlValueAccessor(),
"text" : new DefaultControlValueAccessor()
};
function controlValueAccessorFor(controlType:string):ControlValueAccessor {
var accessor = StringMapWrapper.get(controlValueAccessors, controlType);
if (isPresent(accessor)) {
return accessor;
} else {
return StringMapWrapper.get(controlValueAccessors, "text");
}
}
export class ControlDirectiveBase {
_groupDecorator:ControlGroupDirectiveBase;
_el:NgElement;
_controlName:string;
controlName:string;
type:string;
valueAccessor:ControlValueAccessor;
constructor(groupDecorator, el:NgElement) {
this._groupDecorator = groupDecorator;
this._el = el;
DOM.on(el.domElement, "change", (_) => this._updateControl());
}
set controlName(name:string) {
this._controlName = name;
_initialize() {
if (isBlank(this.valueAccessor)) {
this.valueAccessor = controlValueAccessorFor(this.type);
}
this._groupDecorator.addDirective(this);
this._updateDOM();
this._updateDomValue();
DOM.on(this._el.domElement, "change", (_) => this._updateControlValue());
}
get controlName() {
return this._controlName;
_updateDomValue() {
this.valueAccessor.writeValue(this._el.domElement, this._control().value);
}
//TODO:vsavkin: Remove it once change detection lifecycle callbacks are available
isInitialized():boolean {
return isPresent(this._controlName);
}
_updateDOM() {
// remove it once all DOM write go through a queue
if (this.isInitialized()) {
var inputElement:any = this._el.domElement;
inputElement.value = this._control().value;
}
}
_updateControl() {
var inputElement:any = this._el.domElement;
this._control().value = inputElement.value;
_updateControlValue() {
this._control().value = this.valueAccessor.readValue(this._el.domElement);
}
_control() {
return this._groupDecorator.findControl(this._controlName);
return this._groupDecorator.findControl(this.controlName);
}
}
@Decorator({
lifecycle: [onChange],
selector: '[control-name]',
bind: {
'control-name' : 'controlName'
'control-name' : 'controlName',
'type' : 'type'
}
})
export class ControlNameDirective extends ControlDirectiveBase {
constructor(@Ancestor() groupDecorator:ControlGroupDirective, el:NgElement) {
super(groupDecorator, el);
}
onChange(_) {
this._initialize();
}
}
@Decorator({
lifecycle: [onChange],
selector: '[control]',
bind: {
'control' : 'controlName'
'control' : 'controlName',
'type' : 'type'
}
})
export class ControlDirective extends ControlDirectiveBase {
constructor(@Ancestor() groupDecorator:NewControlGroupDirective, el:NgElement) {
super(groupDecorator, el);
}
onChange(_) {
this._initialize();
}
}
@Decorator({
@ -95,7 +148,7 @@ export class ControlGroupDirective extends ControlGroupDirectiveBase {
set controlGroup(controlGroup:ControlGroup) {
this._controlGroup = controlGroup;
ListWrapper.forEach(this._directives, (cd) => cd._updateDOM());
ListWrapper.forEach(this._directives, (cd) => cd._updateDomValue());
}
addDirective(c:ControlNameDirective) {
@ -144,10 +197,8 @@ export class NewControlGroupDirective extends ControlGroupDirectiveBase {
_createControlGroup():ControlGroup {
var controls = ListWrapper.reduce(this._directives, (memo, cd) => {
if (cd.isInitialized()) {
var initControlValue = this._initData[cd.controlName];
memo[cd.controlName] = new Control(initControlValue);
}
return memo;
}, {});
return new ControlGroup(controls);
@ -157,3 +208,8 @@ export class NewControlGroupDirective extends ControlGroupDirectiveBase {
return this._controlGroup.value;
}
}
export var FormDirectives = [
ControlGroupDirective, ControlNameDirective,
ControlDirective, NewControlGroupDirective
];

92
modules/angular2/test/forms/integration_spec.js vendored
View File

@ -8,9 +8,10 @@ import {NativeShadowDomStrategy} from 'angular2/src/core/compiler/shadow_dom_str
import {Injector} from 'angular2/di';
import {DOM} from 'angular2/src/facade/dom';
import {Component, TemplateConfig} from 'angular2/core';
import {ControlDirective, ControlNameDirective, ControlGroupDirective, NewControlGroupDirective,
Control, ControlGroup} from 'angular2/forms';
import {Component, Decorator, TemplateConfig} from 'angular2/core';
import {ControlGroupDirective, ControlNameDirective,
ControlDirective, NewControlGroupDirective,
Control, ControlGroup, ControlValueAccessor} from 'angular2/forms';
import {TemplateLoader} from 'angular2/src/core/compiler/template_loader';
import {XHRMock} from 'angular2/src/mock/xhr_mock';
@ -36,11 +37,6 @@ export function main() {
});
}
function formComponent(view) {
// TODO: vsavkin remove when view variables work
return view.elementInjectors[0].getComponent();
}
describe("integration tests", () => {
it("should initialize DOM elements with the given form object", (done) => {
var ctx = new MyComp(new ControlGroup({
@ -48,7 +44,7 @@ export function main() {
}));
var t = `<div [control-group]="form">
<input [control-name]="'login'">
<input type="text" control-name="login">
</div>`;
compile(MyComp, t, ctx, (view) => {
@ -65,7 +61,7 @@ export function main() {
var ctx = new MyComp(form);
var t = `<div [control-group]="form">
<input [control-name]="'login'">
<input type="text" control-name="login">
</div>`;
compile(MyComp, t, ctx, (view) => {
@ -86,7 +82,7 @@ export function main() {
var ctx = new MyComp(form);
var t = `<div [control-group]="form">
<input [control-name]="'login'">
<input type="text" control-name="login">
</div>`;
compile(MyComp, t, ctx, (view) => {
@ -108,7 +104,7 @@ export function main() {
}), "one");
var t = `<div [control-group]="form">
<input [control-name]="name">
<input type="text" [control-name]="name">
</div>`;
compile(MyComp, t, ctx, (view) => {
@ -123,11 +119,51 @@ export function main() {
});
});
describe("different control types", () => {
it("should support type=checkbox", (done) => {
var ctx = new MyComp(new ControlGroup({"checkbox": new Control(true)}));
var t = `<div [control-group]="form">
<input type="checkbox" control-name="checkbox">
</div>`;
compile(MyComp, t, ctx, (view) => {
var input = queryView(view, "input")
expect(input.checked).toBe(true);
input.checked = false;
dispatchEvent(input, "change");
expect(ctx.form.value).toEqual({"checkbox" : false});
done();
});
});
it("should support custom value accessors", (done) => {
var ctx = new MyComp(new ControlGroup({"name": new Control("aa")}));
var t = `<div [control-group]="form">
<input type="text" control-name="name" wrapped-value>
</div>`;
compile(MyComp, t, ctx, (view) => {
var input = queryView(view, "input")
expect(input.value).toEqual("!aa!");
input.value = "!bb!";
dispatchEvent(input, "change");
expect(ctx.form.value).toEqual({"name" : "bb"});
done();
});
});
});
describe("declarative forms", () => {
it("should initialize dom elements", (done) => {
var t = `<div [new-control-group]="{'login': 'loginValue', 'password':'passValue'}">
<input id="login" [control]="'login'">
<input id="password" [control]="'password'">
<input type="text" id="login" control="login">
<input type="password" id="password" control="password">
</div>`;
compile(MyComp, t, new MyComp(), (view) => {
@ -142,8 +178,8 @@ export function main() {
});
it("should update the control group values on DOM change", (done) => {
var t = `<div [new-control-group]="{'login': 'loginValue'}">
<input [control]="'login'">
var t = `<div #form [new-control-group]="{'login': 'loginValue'}">
<input type="text" control="login">
</div>`;
compile(MyComp, t, new MyComp(), (view) => {
@ -152,7 +188,8 @@ export function main() {
input.value = "updatedValue";
dispatchEvent(input, "change");
expect(formComponent(view).value).toEqual({'login': 'updatedValue'});
var form = view.contextWithLocals.get("form");
expect(form.value).toEqual({'login': 'updatedValue'});
done();
});
});
@ -166,7 +203,7 @@ export function main() {
template: new TemplateConfig({
inline: "",
directives: [ControlGroupDirective, ControlNameDirective,
ControlDirective, NewControlGroupDirective]
ControlDirective, NewControlGroupDirective, WrappedValue]
})
})
class MyComp {
@ -178,3 +215,22 @@ class MyComp {
this.name = name;
}
}
class WrappedValueAccessor extends ControlValueAccessor {
readValue(el){
return el.value.substring(1, el.value.length - 1);
}
writeValue(el, value):void {
el.value = `!${value}!`;
}
}
@Decorator({
selector:'[wrapped-value]'
})
class WrappedValue {
constructor(cd:ControlNameDirective) {
cd.valueAccessor = new WrappedValueAccessor();
}
}